CN202936488U - Temporary pipe connecting structure for chemical cleaning system of thermal equipment - Google Patents
Temporary pipe connecting structure for chemical cleaning system of thermal equipment Download PDFInfo
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- CN202936488U CN202936488U CN 201220580849 CN201220580849U CN202936488U CN 202936488 U CN202936488 U CN 202936488U CN 201220580849 CN201220580849 CN 201220580849 CN 201220580849 U CN201220580849 U CN 201220580849U CN 202936488 U CN202936488 U CN 202936488U
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- Prior art keywords
- low pressure
- chemical cleaning
- pipeline
- connecting structure
- cleaning system
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Abstract
The utility model discloses a temporary pipe connecting structure for a chemical cleaning system of thermal equipment. A main temporary pipe is connected to a 341 valve outlet; the main temporary pipe is connected to a nearest main condensed water pipeline after fine treatment of condensed water; and two assistant temporary pipes are connected to the main temporary pipe, are connected to a final-stage high-emergency drain valve and a final-stage low-emergency drain valve and are then in pup-joint connection with a steam pump. Through a simple temporary system and a simple operating way, original equipment is made full use to provide chemical cleaning circulating power, without increasing a temporary washing pump, the whole system can form a plurality of circulating loops, the cleaning range includes all heating devices, and the circulating loops are simply and flexibly switched, thereby achieving both separate cleaning of a steam turbine side and combined cleaning of the steam turbine side and a boiler side.
Description
Technical field
The utility model discloses a kind of interim pipe connecting structure of chemical cleaning system of heat power equipment, belong to fired power generating unit chemical cleaning technique field.
Background technology
Oxidation products, rust-preventive agent, greasy dirt, grease and other organism that newly-built fired power generating unit forms in manufacture, transportation, storage, installation and Hydraulic Process in order to remove heat power equipment and tubing system internal surface, reduce intrasystem silicate content, must be comprised to the pipe-line equipment system matting of water flushing, circulation alkali cleaning and cycle pickling.
The fired power generating unit heat power equipment need to complete matting by temporary system formation wash cycles loop is installed, and there is following problem in the chemical cleaning system of current domestic large electric power plant unit heat power equipment: in (1) matting temporary system, need to increase interim scavenging pump; (2) alkali cleaning of steam turbine side and boiler side can not be connected in series effectively; (3) the temporary system complexity, great in constructing amount.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of temporary system simply, not need to install interim pump, can realize interim Pipe joining method structure and the purging method of the heat power equipment chemical cleaning system that serial connection is cleaned, to overcome the deficiencies in the prior art.
The technical solution of the utility model: the interim pipe of the chemical cleaning system of heat power equipment connects, be that the discharge water outlet of 341 valves on pipeline and the pipeline that is connected boiler hydrophobic development unit side of water tank disconnected, separately with main temporary pipeline, connect being exported on the Trunk Line of condensed water nearby after the condensate fine processing of 341 valves; After connecting again the secondary interim pipe of two-way add after urgent drain valve the low plus hydrophobic valve with final stage to the height of final stage respectively on main temporary pipeline, the short circuit heat pump.
Be provided with valve on the interim pipe of pair.
The interim pipe connecting structure of the chemical cleaning system of heat power equipment, it comprises the deoxygenator connected with pipeline, the heat pump fore pump, scavenging pump outlet pipe Electrically operated gate, the high-pressure feed water Electrically operated gate, economizer, the lower furnace water wall, mixing header in the middle of water wall, section's furnace wall cooling, separator, water tank, 341 valves, gland heater water side Electrically operated gate, the low pressure heater group, the high pressure heater group, condensate pump, condenser, connect main temporary pipeline at 341 valve outlet ports, main temporary pipeline is connected on the Trunk Line of condensed water nearby after condensate fine is processed, after connecting again the secondary interim pipe of two-way add after urgent drain valve the low plus hydrophobic valve with final stage to the height of final stage respectively on main temporary pipeline, the short circuit heat pump.
Be provided with valve on the interim pipe of pair.
The low pressure heater group by
#8 low pressure heaters,
#7 low pressure heaters,
#6 low pressure heaters,
#5 low pressure heaters form.
The high pressure heater group by
#3 height add,
#2 height add,
#1 height adds formation.
Be provided with the low plus hydrophobic pipeline between the low pressure heater group.
Be provided with the HP heater drainage pipeline between the high pressure heater group.
The purging method of the chemical cleaning system of the heat power equipment after interim pipe is installed, and whole system can form following 4 scavenger circuits:
A, steam turbine boiler combined cleaning systemic circulation loop are: mixing header in the middle of deoxygenator → heat pump fore pump → scavenging pump outlet pipe Electrically operated gate → high-pressure feed water Electrically operated gate → economizer → lower furnace water wall → water wall → upper furnace water wall → separator → water tank → 341 valves → main temporary pipeline → gland heater water side Electrically operated gate → low pressure heater group → deoxygenator;
B, condensate system clean cycle loop are: condenser → condensate pump → gland heater) →
#8 low pressure heaters →
#7 low pressure heaters →
#6 low pressure heaters →
#5 low pressure heaters → deoxygenator → deoxygenator offlet → condenser that overflows;
C, clean cycle loop, high pressure heater lateral steam tube road are: condenser → condensate pump → secondary temporary pipeline →
#3 height add urgent unrestrained water valve →
#add → HP heater drainage of 3 height pipeline →
#add → HP heater drainage of 2 height pipeline →
#1 height adds →
#1 height adds urgent unrestrained water valve → condenser;
D, clean cycle loop, low pressure heater lateral steam tube road are: condenser → condensate pump → temporary pipeline →
#8 low add normal drain valve →
#8 low add → low plus hydrophobic pipelines →
#7 low pressure heaters → low plus hydrophobic pipeline →
#6 low pressure heaters → low plus hydrophobic pipeline →
#5 low pressure heaters →
#5 low add urgent unrestrained water pipe → condenser.
Compared with prior art, by the connection of temporary system, the circulation power of scavenging solution is provided by condensate pump and heat pump fore pump, does not need to increase interim scavenging pump, whole system both can realize the independent cleaning of steam turbine side, also can realize the combined cleaning of steam turbine side and boiler side.
The utility model is by a kind of simple temporary system and operating method simultaneously, take full advantage of existing equipment the matting circulation power is provided, do not need to increase interim scavenging pump, whole system can form a plurality of circulation loops, clean range has been included whole heat power equipments, and the switching of each circulation loop is simple, flexible, can realize the independent cleaning of steam turbine side, also can realize the combined cleaning of steam turbine side and boiler side.The whole system temporary system is few, there is no interim power-equipment, construction volume is little, a large amount of construction costs and time have been saved (preferably supplementing the comparison sheet of existing construction cost, time and existing construction cost and time), therefore the utility model can bring good economic benefit to fired power generating unit, has the meaning of popularization.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The interim pipeline added of heavy line representative in figure;
In figure, mixing header, 8-section furnace wall cooling, 9-separator, 10-water tank, 11-341 valve, 12-gland heater water side Electrically operated gate, 13-in the middle of 1-deoxygenator, 2-heat pump fore pump, 3-scavenging pump outlet pipe Electrically operated gate, 4-high-pressure feed water Electrically operated gate, 5-economizer, 6-lower furnace water wall, 7-water wall
#5 low pressure heaters, 14-
#6 low pressure heaters, 15-
#7 low pressure heaters, 16-
#8 low pressure heaters, 17-condenser, 18-condensate pump, 19-gland heater, 20-
#3 height add urgent unrestrained water valve, the excessive offlet of 21-deoxygenator, 22-
#1 height adds urgent unrestrained water valve 23-
#1 height adds, 24, HP heater drainage pipeline, 25-
#2 height add, 26-
#3 height add, 27-
#8 low normal drain valve, 28-low plus hydrophobic pipeline, the 29-of adding
#5 low urgent unrestrained water pipe, 30-heat pump, 31-master's temporary pipeline, 32-condensed water Trunk Line, the secondary interim pipes of 33-of adding
Embodiment
Embodiment: the connection of the parts such as fired power generating unit heat power equipment valve is with reference to Fig. 1, for the cleaning that completes the fired power generating unit heat power equipment need to complete matting by temporary system formation wash cycles loop is installed, the method of attachment of the utility model temporary system is that the discharge water outlet of 341 valves 11 on pipeline and the pipeline that is connected boiler hydrophobic development unit side of water tank 10 disconnected, and separately with main temporary pipeline 31, connects being exported on the Trunk Line of condensed water nearby 32 after the condensate fine processing of 341 valves 11; After connecting again the secondary interim pipe 33 of two-way add urgent drain valve to the height of final stage respectively on main temporary pipeline 31 with the low plus hydrophobic valve of final stage after, short circuit heat pump 30.Concrete being operating as in 341 valve 11 outlets connects main temporary pipeline 31, main temporary pipeline 31 is connected on the Trunk Line of condensed water nearby 32 after condensate fine is processed, after connecting again the secondary interim pipe 33 of two-way add urgent drain valve to the height of final stage respectively on main temporary pipeline 31 with the low plus hydrophobic valve of final stage after, short circuit heat pump 30, be provided with valve for ease of being controlled at secondary interim pipe 33.
Wherein the low pressure heater group by
#8 low pressure heaters 16,
#7 low pressure heaters 15,
#6 low pressure heaters 14,
#5 low pressure heaters 13 form; Be provided with low plus hydrophobic pipeline 28 between the low pressure heater group.The high pressure heater group by
#3 height add 26,
#2 height add 25,
#1 height adds 23 formations; Be provided with HP heater drainage pipeline 24 between the high pressure heater group.
After the mode provided by the utility model connects interim pipeline, whole system can form following 4 scavenger circuits:
A, steam turbine boiler combined cleaning systemic circulation loop are: mixing header 7 → upper furnace water wall 8 → separator 9 → water tank 10 → 341 valves 11 → main temporary pipeline 31 → gland heater water side Electrically operated gate 12 in the middle of deoxygenator 1 → heat pump fore pump (2) → scavenging pump outlet pipe Electrically operated gate 3 → high-pressure feed water Electrically operated gate 4 → economizer 5 → lower furnace water wall 6 → water wall →
#8 low pressure heaters 16 →
#7 low pressure heaters 15 →
#6 low pressure heaters 14 →
#5 low pressure heater 13 → deoxygenators 1;
B, condensate system clean cycle loop are: condenser 17 → condensate pump 18 → gland heater 19 →
#8 low pressure heaters 16 →
#7 low pressure heaters 15 →
#6 low pressure heaters 14 →
#5 low pressure heater 13 → deoxygenator 1 → deoxygenators offlet 21 → condenser 17 that overflows;
C, clean cycle loop, high pressure heater lateral steam tube road are: condenser 17 → condensate pump 18 → secondary temporary pipeline 33 →
#3 height add urgent unrestrained water valve 20 →
#3 height add 26 → HP heater drainage pipeline 24 →
#2 height add 25 → HP heater drainage pipeline 24 →
#1 height adds 23 →
#1 height adds urgent unrestrained water valve 22 → condenser 17;
D, clean cycle loop, low pressure heater lateral steam tube road are: condenser 17 → condensate pump 18 → temporary pipeline 33 →
#8 low add normal drain valve 2) →
#8 low add 17 → low plus hydrophobic pipeline 28 →
#7 low pressure heater 16 → low plus hydrophobic pipelines 28 →
#6 low pressure heater 15 → low plus hydrophobic pipelines 28 →
#5 low pressure heaters 14 →
#5 low add urgent unrestrained water pipe 29 → condenser 17.
Claims (6)
1. the interim pipe connecting structure of the chemical cleaning system of a heat power equipment, it comprises the deoxygenator (1) connected with pipeline, heat pump fore pump (2), scavenging pump outlet pipe Electrically operated gate (3), high-pressure feed water Electrically operated gate (4), economizer (5), lower furnace water wall (6), mixing header (7) in the middle of water wall, section's furnace wall cooling (8), separator (9), water tank (10), 341 valves (11), gland heater water side Electrically operated gate (12), the low pressure heater group, the high pressure heater group, condenser (17), condensate pump (18), gland heater (19),
#1 height adds urgent unrestrained water valve (22), it is characterized in that: in 341 valves (11) outlet, connect main temporary pipeline (31), main temporary pipeline (31) is connected on the Trunk Line of condensed water nearby (32) after condensate fine is processed, again main temporary pipeline (31) is upper connect the secondary interim pipe of two-way (33) to add urgent drain valve to the height of final stage respectively after with the low plus hydrophobic valve of final stage after, short circuit heat pump (30).
2. the interim pipe connecting structure of the chemical cleaning system of heat power equipment according to claim 1, is characterized in that: in pair, manage on (33) temporarily and be provided with valve.
3. the interim pipe connecting structure of the chemical cleaning system of heat power equipment according to claim 1 is characterized in that: the low pressure heater group by
#8 low pressure heaters (16),
#7 low pressure heaters (15),
#6 low pressure heaters (14),
#5 low pressure heaters (13) form.
4. the interim pipe connecting structure of the chemical cleaning system of heat power equipment according to claim 1 is characterized in that: the high pressure heater group by
#3 height add (26),
#2 height add (25),
#1 height adds (23) and forms.
5. the interim pipe connecting structure of the chemical cleaning system of heat power equipment according to claim 3, is characterized in that: be provided with low plus hydrophobic pipeline (28) between the low pressure heater group.
6. the interim pipe connecting structure of the chemical cleaning system of heat power equipment according to claim 4, is characterized in that: be provided with HP heater drainage pipeline (24) between the high pressure heater group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580849 CN202936488U (en) | 2012-11-07 | 2012-11-07 | Temporary pipe connecting structure for chemical cleaning system of thermal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580849 CN202936488U (en) | 2012-11-07 | 2012-11-07 | Temporary pipe connecting structure for chemical cleaning system of thermal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202936488U true CN202936488U (en) | 2013-05-15 |
Family
ID=48320736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220580849 Withdrawn - After Issue CN202936488U (en) | 2012-11-07 | 2012-11-07 | Temporary pipe connecting structure for chemical cleaning system of thermal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202936488U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899676A (en) * | 2012-11-07 | 2013-01-30 | 贵州电力试验研究院 | Connecting method and structure of temporary pipes of chemical cleaning system of thermal equipment and washing method |
| CN105180141A (en) * | 2015-08-19 | 2015-12-23 | 河南第一火电建设公司 | Efficient cleaning system for boiler and passive film of water supply system |
| CN106824882A (en) * | 2017-03-22 | 2017-06-13 | 南京电力设备质量性能检验中心 | The cleaning equipment and cleaning method of extra-supercritical unit high pressure extraction heat regenerative system |
-
2012
- 2012-11-07 CN CN 201220580849 patent/CN202936488U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899676A (en) * | 2012-11-07 | 2013-01-30 | 贵州电力试验研究院 | Connecting method and structure of temporary pipes of chemical cleaning system of thermal equipment and washing method |
| CN102899676B (en) * | 2012-11-07 | 2014-12-10 | 贵州电力试验研究院 | Connecting method and structure of temporary pipes of chemical cleaning system of thermal equipment and washing method |
| CN105180141A (en) * | 2015-08-19 | 2015-12-23 | 河南第一火电建设公司 | Efficient cleaning system for boiler and passive film of water supply system |
| CN105180141B (en) * | 2015-08-19 | 2017-08-18 | 中国电建集团河南工程公司 | Boiler and water supply system passivating film high-efficient cleaning system |
| CN106824882A (en) * | 2017-03-22 | 2017-06-13 | 南京电力设备质量性能检验中心 | The cleaning equipment and cleaning method of extra-supercritical unit high pressure extraction heat regenerative system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |